Pressing device for manufacturing heat-conducting gel dielectric strength test sample wafer
By designing a roller pressing device to press the thermal conductive gel sample, the thickness error and bubble problems caused by the natural curing method were solved, the uniform forming and flat surface of the thermal conductive gel sample were achieved, and the accuracy of the dielectric strength test was improved.
Patent Information
- Application Number
- CN202422738205.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-11
AI Technical Summary
During the production of thermal conductive gel samples, the natural curing method results in large thickness errors and easily forms bubbles, affecting the accuracy of dielectric strength testing.
A pressing device is designed, including a base plate, studs, locking nuts, a frame and a roller, which is used to press the thermal conductive gel during the curing process to ensure its uniform spreading and reduce defects and bubbles.
The uniform thickness and smooth surface of the thermal conductive gel sample were achieved, bubbles and defects were reduced, and the reliability of the dielectric strength test was improved.
Smart Images
Figure CN223332738U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of thermal conductive gel, and more particularly to a pressing device for making a thermal conductive gel dielectric strength test sample. Background Art
[0002] Thermally conductive gel is a gap-filling thermally conductive material. It's a gel-like thermally conductive material made by stirring, mixing, and encapsulating a silicone composite thermally conductive filler. It molds to the shape of the structure, exhibits excellent fluidity, and offers excellent structural adaptability and surface adhesion, effectively filling gaps. It also possesses excellent insulation, withstand voltage, and temperature stability, making it safe and reliable. Thermally conductive gel is commonly used in various electronic components, so accurate testing of its electrical properties, such as dielectric strength, is crucial.
[0003] However, in the process of making thermal conductive gel samples, the thickness of the thermal conductive gel samples formed by the natural curing method commonly used is prone to errors, and bubbles are easily formed inside, thus affecting the test. Utility Model Content
[0004] In view of the above-mentioned defects of the prior art, the utility model provides a pressing device for making a thermal conductive gel dielectric strength test sample.
[0005] The technical solution adopted by the present invention to solve the technical problem is to construct a pressing device for producing a thermally conductive gel dielectric strength test sample, the pressing device comprising a base plate, at least two studs fixed vertically to the edge of the top surface of the base plate, a locking nut screwed to the studs, a frame detachably mounted on the base plate, and a roller rotatably mounted within the frame. The frame is provided with through holes at positions corresponding to the at least two studs, through which the at least two studs can pass.
[0006] In the pressing device for producing a thermally conductive gel dielectric strength test specimen described in the present invention, a first protrusion protruding from the end surface of the first end of the roller is fixedly provided at the center of the first end of the roller, a second protrusion protruding from the end surface of the second end of the roller is fixedly provided at the center of the second end of the roller, a first guide groove for inserting and moving the first protrusion is provided on the first side of the frame, and a second guide groove for inserting and moving the second protrusion is provided on the second side of the frame.
[0007] In the pressing device for producing a thermally conductive gel dielectric strength test specimen described in the present invention, the frame is a rectangular frame, which includes a first side plate, a second side plate, a first end plate fixedly connected to the first ends of the first side plate and the second side plate, and a second end plate fixedly connected to the second ends of the first side plate and the second side plate. The first guide groove is provided on the first side plate, and the second guide groove is provided on the second side plate.
[0008] In the pressing device for producing the thermal conductive gel dielectric strength test sample of the present invention, the at least two studs are four studs, the base plate is a rectangular base plate, and the four studs are respectively fixed at four circumferential corners of the base plate.
[0009] In the pressing device for producing the thermal conductive gel dielectric strength test sample of the present invention, the pressing device further comprises a metal strip that can be placed at the bottom of the frame.
[0010] The implementation of the pressing device for making the dielectric strength test sample of the thermal conductive gel of the present invention has the following beneficial effects: when using the pressing device of the present invention, align the through hole on the frame with the stud, then pass the stud through the through hole, lock the locking nut on the stud and fix the frame to the top surface of the substrate, then pour an appropriate amount of thermal conductive gel into the frame, and during the curing process, roll the roller located in the frame to press the thermal conductive gel until it is finally cured to form a thermal conductive gel sample. In this application, the thermal conductive gel sample is pressed by the roller, and the smooth movement of the roller makes the thermal conductive gel sample evenly spread out after being squeezed, which makes it have fewer defects and bubbles during the molding process, and the thickness of the molded thermal conductive gel sample is uniform, and there is no uneven surface, which is conducive to subsequent testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:
[0012] Figure 1 The utility model is a schematic diagram of the exploded structure of a pressing device for producing a thermal conductive gel dielectric strength test sample. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0014] like Figure 1 As shown, in the first embodiment of the pressing device for producing a thermally conductive gel dielectric strength test specimen of the present invention, the pressing device 10 includes a base plate 11, at least two studs 12 vertically fixed to the top edge of the base plate 11, a locking nut 13 threadedly connected to the studs 12, a frame 14 detachably mounted on the base plate 11, and a roller 15 rotatably mounted within the frame 14. The frame 14 is provided with through holes 16 at positions corresponding to the at least two studs 12, through which the at least two studs 12 can pass.
[0015] When using the pressing device of the present invention, align the through hole 16 on the frame 14 with the stud 12, then pass the stud 12 through the through hole 16, lock the locking nut 13 on the stud 12 and fix the frame 14 to the top surface of the substrate 11, then pour an appropriate amount of thermal conductive gel into the frame 14. During the curing process, the roller 15 located in the frame 14 is rolled to press the thermal conductive gel until it is finally cured to form a thermal conductive gel sample. In this application, the thermal conductive gel sample is pressed by the roller 15. The smooth movement of the roller 15 allows the thermal conductive gel sample to be evenly spread out after being squeezed, which results in fewer defects and bubbles during the molding process. The molded thermal conductive gel sample has a uniform thickness and does not have an uneven surface, which is beneficial for subsequent testing.
[0016] In the pressing device 10 for producing a thermally conductive gel dielectric strength test specimen described in the present invention, a first protrusion 17 protruding from the end surface of the first end of the roller 15 is fixedly provided at the center of the first end of the roller 15, and a second protrusion 18 protruding from the end surface of the second end of the roller 15 is fixedly provided at the center of the second end of the roller 15. A first guide groove 19 for inserting and moving the first protrusion 17 is provided on the first side of the frame 14, and a second guide groove 20 for inserting and moving the second protrusion 18 is provided on the second side of the frame 14.
[0017] Specifically, the frame 14 is a rectangular frame 14, which includes a first side panel 21, a second side panel 22, a first end panel 23 fixedly connected to the first ends of the first side panel 21 and the second side panel 22, and a second end panel 24 fixedly connected to the second ends of the first side panel 21 and the second side panel 22. The first guide groove 19 is arranged on the first side panel 21, and the second guide groove is arranged on the second side panel 22.
[0018] In this embodiment, the at least two studs 12 are four studs 12 , the base plate 11 is a rectangular base plate 11 , and the four studs 12 are respectively fixed at four angular positions of the base plate 11 .
[0019] Furthermore, the pressing device 10 further includes a metal strip 25 that can be placed at the bottom of the frame 14 .
[0020] To adjust the thickness of the thermally conductive gel sheet, metal strips 25 can be placed between the frame 14 and the substrate 11, raising the frame 14 upward to increase the thickness of the thermally conductive gel sheet. Preferably, the metal strips 25 are placed to form a rectangular shape similar to the frame 14 to prevent the thermally conductive gel from overflowing.
[0021] Furthermore, in this utility model, unless otherwise expressly specified or limited, terms such as "connected," "connected," and "stacked" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.
[0022] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A pressing device for making a thermally conductive gel dielectric strength test specimen, characterized in that: The pressing device includes a base plate, at least two studs vertically fixed to the edge of the top surface of the base plate, a locking nut threaded with the studs, a frame detachably arranged on the base plate, and a roller rotatably arranged in the frame. Through holes for the at least two studs to pass through are provided at positions corresponding to the at least two studs on the frame.
2. The pressing device for producing a thermally conductive gel dielectric strength test specimen according to claim 1, characterized in that: A first boss protruding from the end surface of the first end of the roller is fixedly provided at the center of the first end of the roller, a second boss protruding from the end surface of the second end of the roller is fixedly provided at the center of the second end of the roller, a first guide groove for inserting and moving the first boss is provided on the first side of the frame, and a second guide groove for inserting and moving the second boss is provided on the second side of the frame.
3. The pressing device for producing a thermally conductive gel dielectric strength test specimen according to claim 2, characterized in that: The frame is a rectangular frame, and the frame includes a first side panel, a second side panel, a first end panel fixedly connected to the first ends of the first and second side panels, and a second end panel fixedly connected to the second ends of the first and second side panels. The first guide groove is arranged on the first side panel, and the second guide groove is arranged on the second side panel.
4. The pressing device for producing a thermally conductive gel dielectric strength test specimen according to claim 1, characterized in that: The at least two studs are four studs, the base plate is a rectangular base plate, and the four studs are respectively fixed at four angular positions of the base plate.
5. The pressing device for producing a thermally conductive gel dielectric strength test specimen according to claim 1, characterized in that: The pressing device further comprises a metal strip which can be placed on the bottom of the frame.